Improvement in compensating attachments for flour-packing machines



L. CREVELING.

Compehsating Attachments for Flour-Pas Machines.

No. 146,384; Jg wi mnuevs;

AM. PHMD-UTHUGRAPHIU LaM w'osaamzs mums) king Paten ted Ian. 13,1874.

sponding parts.

UNITED STATES LEWIS OBEVELING, OF AKRON, OHIO.

IMPROVEMENT IN COMPENSATING ATTACHMENTS FOR FLOUR-PACKING MACHINES.

. Specification forming art of Lettr 1's Patent No. 146.384. datcdJulluaiy 13, 1874; application filcd December 1, 1873.

. resents afront elevation of a flour-packer with my compensatingattachment applied thereto, partly in section. Fig. 2 is a sectionalelevation of the packeushowing front view of compensating attachmentwith top of case taken off; and Fig. 3 a detail side view of thespringbrake for regulating the elevation of the platform.

Similar letters of reference indicate corre- The object of my inventionis to provide an improved compensating attachment for the flour-packingmachines by which the cumbrous and inconvenient spiral pulley and weighthitherto in use may be dispensed with,

the barrels or sacks quicker packed, and the machine be readily changedto pack barrels or sacks, and vice versa, doing more uniform work andbeing more completely within the control of the attendant. My inventionconsists in the connection of a strong spiral spring with the shaft fromwhich the barrel-platform is suspended, and with a hollow cog -wheel,which is guided by a projecting rim in the base-plate of the casing, andadjusted to any degree of tension of the spring bymeans of a pinion withcheck pawl and crank, as required for the different purposes for whichthe packer is used. The increasing weight of the barrel or sack to bepacked will be compensated by the increased tension of thespiral springon the shaft, so that the process of packing continues uniformly frombeginning to end, the platform returning then easily into elevatedposition for filling the next barrel.

A in the drawing represents the upright guide-frame of the packer,constructed in the customary manner. B is the platform, which is guidedin frame A, and supports on its horizontal part the barrels, sacks, orother packages. The platform B is suspended by a chain or wire-rope, a,from a fixed roller, 12, of horizontal shaft (7, which turns in suitablebearings ner that the raised or shoulder part-c is held.

between the top and base plate of casing- D, and defines thereby theexact position of the shaft d. A strong spiral spring, E, is firmlyapplied to sleeve e coiled around the same, and connected with its outerend to the inside of a hollow cog-wheel, F, which turns, by a.projecting rim, f, in a corresponding. groove,

f, of base-plate D while the top plate D retains spring and cog-wheel inposition in the casing. A pinion, F, gears into cog-wheel F, andproduces any required tension of spring E by turning a crank, g, appliedto the shaft of the same. A weighted pawl, h, looks into the teeth ofpinion F, and prevents the return motion of cog -wheel F, which pawl maybe furthermore secured inlposition after the required tension has beenobtained by a stoppin, h, as indicated in the drawing. In place of pawlh, a common spring check-pawl,which may be set from the outside ofeasing D, may be used. The casing D extends, also, around pinion F, topplate D being connected, by suitable screw-bolt-s, to the base-plate Dcovering thereby entirely the interior parts, and preventing dust andflour particles from settling therein. By turning the crank the strengthor tension of the spiral spring may be adjusted accurately and withoutloss of time, so that sacks or barrels may be alternately packed on theplatform by the simple winding or unwinding of the same. The changingfrom sacks to barrels, and vice versa, which was hitherto connectedwithconsiderable inconvenience, is with my attachment quickly obtained,which admits thereby of faster packing. The compensating power is moreperfect on account of the spring closing or winding tighter the more thebarrel or sack recedes with the platform from the knives in the tube ofthe packer,. causing thereby the gradual increase of the tension andproducing a compensation for the in creased Weight of the barrel orsack, and producing an equal packing of the flour in the package fromone end to the other. The more compact spring attachment saves the spacetaken up by the box for the weights and the spiral wheel, and allowsalso the putting up of the packer at any part of the building Withoutrequiring digging for the Weights or descending into the story below.The weighted spring-brake G, which is applied to theshaft d in the usualmanner, is correspondingly adjusted to the different Weights of thepackages on the platform, so that the elevating of the same isaccomplished in a noiseless and quick manner by the expansive force ofthe spring on the shaft.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. As an improvement in flour-packing machines, thespring compensating and elevating attachments D E F F, provided with acheck device, in combination with shaft (1, sleeve 6 6', frame A, andplatform 13, substantially as and for the purpose described.

2. The spring compensating attachment to flour-packing machines,consisting of easing D, shaft sleeve or shoulder e 0 spiral spring E,cog-Wheel F, pinion F, check-pawl. h, and crank, foradjnsting thetension of the compensating spring, as set forth.

3. The hollow cog-Wheel F, having projecting rim. f, in combination withcircular groove f of easing D, for turning therein, as described.

LEWVIS OREVELING.

Vlitnesses: 1

A. H. GoMMENs, ALBERT ALLEN.

